Envelope blank and method of making same



July 19, 1927.

o, WIDMAIER ENVELOPE BLANK AND METHOD oF'lAxING sluu?I Filed May 19, 1925 Pawnee July 19,1927. 1,636,495

UITED STATES PATENT IQFFICE.

o'r'ro WIDMAIER, or MAGsTAn'r, GERMANY. l ENvnorE BLANK AND mn'rnon or MAKING SAME. Y Application led Hay 19, 1925, Serial No. 31,403-, and in Germany March 22, 1,924.

My invention relates to blanks for enveperforations l are adapted to be engaged by lopes and Amore especially to a method in the nippers of the sealing machine. which the blanks are Ycut from a web of the Sametime, if desired, perforations of a y paper. -It is an4 object of my invention to iiner pitch or indents or the like may be Y 5 feed such web through a sealing machine'in produced along the lines B-B and AeA, 60 such manner that the several blanks are al-v if the blanks shall be separated by pulling ways in the correct position with regard to them apart. If they shall be separated by the operating elements of the machine. cutting, such perforations can obviously be 'Ilo this end I punch transverse rows of dispensed with. Preferably the blanks are holes in the web at predetermined points also slightly creased or perforated along the which can be engaged by nippers formingl lines 9, 9 in parallel to the line B-B, and at part of the sealing machine so that the` web right angles to these lines, as shown at 11. is fed the exact distance required. In a As appears from the drawing, each blank 2 preferred form of my invention I divide the comprises a complete hole 6 at the centre and web longitudinally, cutting the blanks from one half of a circular hole 6 at each end, the 70 the two halves of the web, and I form holes other halves o these holes belonging to the along the line of division, thereby obtainadjacent blanks. It will further appear that ing blanks with' indentures at two corners the lines A-A pass through the centre of and at the end of the folding line, whereby the end holes, and the lines 11, 11 Vpass two closing laps are formed. through the centre of the central hole'. 75 Y In the drawings aiixed to this specifica- After the web has been unched, perfotion and forming 'part thereof I have i11us rated or indented -as descri ed, adhesive is trated the preferred move ofv carrying out applied t0 the upper face of the web along my invention, the line B-Bat 4. and to the lower face of In the drawings the web along the lines A-A at 12, 12 and 80 Fig. l is a plan view of part of a web, along the edges of the web at 5, 5. Finally, while the web is separated along the line B-B and ldig. 2 shows an envelope blank detached wound on a reel from which each strip sepfrom the web and. arately or both strips together are taken to 3@ Fig. 3 Shows afnished envelope. a sealing machine. In this machine the Referring t0 the drawings, the web Shown blanks 2 are Separated' alOIlg' the lines A -A in Fig. 1 is subdivided vinto two parallel as shown 1n Fig. 2,the adhesive .strips are strips along the line B-#B by means of a molstened', the flaps 7 and 8 adyacent the suitable Cutter (not shown), Each strip is holes 6, 6 are folded over to the lnside along i 35 again subdivided into a, plurality of blanks the lines 9, 9 and the envelope is fol-ded 90 2, 2 by transverse cuts extending on the lines alOIlg tleulll'e 11, 11.1 fir-eA.. It will be understood that any num- The finished envelope is shown in Fig. 3. ber of strips and blanks may be cut from a It appears from this gure, that the foldedweb, and it will also be understood that over flaps 7, 8 meet onthe inside of the ene@ instead of cutting the strips from the web velope and the adhesive vstrips 12 and 5 95 and the blanks from the stri s, the web and meet also so that the envelope is closed. the strips might be provide with suitable The means and mechanisms by which the indents or perforations along which the web 1s converted into blanks'and by-Which strips or blanks can be separated by pulling these blanks are sealed, do not form part of them apart. v the present invention, and are therefore not' 100 The web which is taken from a reel (not shown anddescribed. Shown) may be provided with printed or It will be understood, that any of the aperother matter, such as a trade-mark, the adations described and which are not vital for v dress of the sender, line marks for the adv the present method, may alsobe dispensed en dress of the receiver and the like. with, for instance the prmtin of the blanks.

After these impressions have been made, The punching from the h o es-6 which are the web is caused to pass through a punchof a comparatively large diameter, may be ing machine (not shown) which produces used as seals. holes 6,6 along lthe line B-B, and erfora- I wish it to be understood that I do'not f tions l0, 10 along the lines A-' The' desire to be limited to the exact details of 11 construction shown and described for obvious modifications will occur to a person skilled in the art.

I claim:

1. The method of'making envelope blanks from a web of paper, comprising punching transverse rows of feeding holes in the web at predetermined points for the attack of feeding grippers, each row comprising only a few holes evenly distributed in spaced relation across the width of the web, and cutting the web on lines parallel to and spaced from said rows.

2. The method of making envelope blanks from a web -of paper having double the width of an envelope blank, comprising punching transverse rows of feeding holes in the web at redetermined points for the attack of fee ing grippers each row compris- I ing only a few holes in spaced relation arranged in line in two oups, punching along the longitudinal middle line of the web holes spaced the length of a blank and cutting the web on lines parallel to and spaced from said rows.

3. The method of making envelope blanks from a web of paper having double the width of an envelope blank, comprising punching transverse rows of feeding holes in the web at predetermined points for the attack of feeding grippers each now comprising only a few holes in spaced relation arranged inline in two groups, punching along the longitudinal middle line of the web holes spaced half thelength of a blank and cutting the web on lines parallel to and spaced from said rows.

4. The method of makin'g envelope blanks from a web of paper having double the width .0f an envelope blank, comprising punching transverse rows of feeding holes in the web at predetermined points for the attackl of feeding gripperseacli row comprising only a few holes in spaced relation arranged in line in two groups, punching along the middle line of the web holes s aced the length of a blank cutting the we on the middle line and cutting the web on lines parallel to and s aced from said rows and separating said lanks from said web.

5. As a new article of manufacture, an envelope blank. of oblong rectangular shape having three small indentures, one at each end and 'one in the middle of one 0f its longitudinal edges, and two holes in spaced relation near one transversal edge.`

In testimony whereof I aflix my signature.

- OTTO WIDMAIER. 

